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https://github.com/jmcnamara/pytest_c_testrunner

Using py.test as a testrunner for C unit test files
https://github.com/jmcnamara/pytest_c_testrunner

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Using py.test as a testrunner for C unit test files

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## Using `pytest` as a testrunner for C unit test files

This is an simple tutorial on how to use the Python [`pytest`](http://pytest.org/latest/index.html) testing tool as a testrunner for C unit tests.

It includes [documentation](http://pytest-c-testrunner.readthedocs.org) and working examples.

![image](https://raw.github.com/jmcnamara/pytest_c_testrunner/master/docs/source/_images/output.png)

The tutorial shows how to extend pytest to collect C unit test files, execute them, capture the output and displays it.

$ sudo pip install pytest

$ make

$ py.test -v
========================= test session starts ==========================
platform darwin -- Python 2.7.2 -- py-1.4.20 -- pytest-2.5.2
collected 9 items

test/test_basic_integers.c:13: test_some_integers() PASSED
test/test_basic_integers.c:14: test_some_integers() PASSED
test/test_basic_integers.c:19: test_more_integers() FAILED
test/test_basic_integers.c:20: test_more_integers() FAILED
test/test_basic_strings.c:16: test_some_strings() PASSED
test/test_basic_strings.c:17: test_some_strings() FAILED
test/test_basic_strings.c:25: test_more_strings() FAILED
test/test_basic_strings.c:26: test_more_strings() FAILED
test/test_basic_strings.c:27: test_more_strings() PASSED

=============================== FAILURES ===============================
_________________________ test_more_integers() _________________________
Test failed : ASSERT_EQUAL_STR(313, 33) at test_basic_integers.c:19
got: 33
expected: 313

_________________________ test_more_integers() _________________________
Test failed : ASSERT_EQUAL_STR(12, 2) at test_basic_integers.c:20
got: 2
expected: 12

_________________________ test_some_strings() __________________________
Test failed : ASSERT_EQUAL_STR(foo, bar) at test_basic_strings.c:17
got: This is bar
expected: This is foo

_________________________ test_more_strings() __________________________
Test failed : ASSERT_EQUAL_STR(bar, bar + 1) at test_basic_strings.c:25
got: his is bar
expected: This is bar

_________________________ test_more_strings() __________________________
Test failed : ASSERT_EQUAL_STR(foo, NULL) at test_basic_strings.c:26
got: (null)
expected: This is foo

================== 5 failed, 4 passed in 0.23 seconds ==================

[Read the full documentation](http://pytest-c-testrunner.readthedocs.org).